boost/mpl/min_max.hpp

0001
0002 #ifndef BOOST_MPL_MIN_MAX_HPP_INCLUDED
0003 #define BOOST_MPL_MIN_MAX_HPP_INCLUDED
0004
0005 // Copyright Aleksey Gurtovoy 2000-2008
0006 //
0007 // Distributed under the Boost Software License, Version 1.0.
0008 // (See accompanying file LICENSE_1_0.txt or copy at
0009 // http://www.boost.org/LICENSE_1_0.txt)
0010 //
0011 // See http://www.boost.org/libs/mpl for documentation.
0012
0013 // $Id$
0014 // $Date$
0015 // $Revision$
0016
0017 #include <boost/mpl/less.hpp>
0018 #include <boost/mpl/if.hpp>
0019 #include <boost/mpl/aux_/na_spec.hpp>
0020
0021 namespace boost { namespace mpl {
0022
0023 template<
0024       typename BOOST_MPL_AUX_NA_PARAM(N1)
0025     , typename BOOST_MPL_AUX_NA_PARAM(N2)
0026     >
0027 struct min
0028     : if_< less<N1,N2>,N1,N2 >
0029 {
0030 };
0031
0032 template<
0033       typename BOOST_MPL_AUX_NA_PARAM(N1)
0034     , typename BOOST_MPL_AUX_NA_PARAM(N2)
0035     >
0036 struct max
0037     : if_< less<N1,N2>,N2,N1 >
0038 {
0039 };
0040
0041 BOOST_MPL_AUX_NA_SPEC(2, min)
0042 BOOST_MPL_AUX_NA_SPEC(2, max)
0043
0044 }}
0045
0046 #endif // BOOST_MPL_MIN_MAX_HPP_INCLUDED